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SOIL BORING LOG Boring No. IW-1 Sheet 1 of 1 <br /> Client Arco Station 5469 Date 3126102 <br /> Address 130 South Wilson Way, Drilling Company: Woodward Drilling Company rig e: BK-81 <br /> Stockton,CA Driller: Frank Ramirez <br /> Project No. D000-336 Method Hallow Stem Auger hole diam.:8" <br /> logged By: Scott Bittin er <br /> Well Pack sand: 54 ft. to 57.5 ft. Well Construction casing: PVC <br /> bent.: 52-ft. to 54 ft. casing diam.:0.75" 2"diameter microporous tubing installed 55'-57.5' <br /> rout: 0 ft, to 52 ft. Depth to GW: Q ft.Time/Date ft Time/Date <br /> sample Blow Sample We Depth Descriptions of Materials PID <br /> Constru LITHO <br /> Type I No. Count Time Recov. I Ct. Scale COLUMN and Conditions ppM <br /> _ No samples collected 4'-45'bgs <br /> -------------------- -- - - 4 5 <br /> — ----------------------------------------------------- <br /> 39 <br /> _ CLAYEY SILT 45'-45.4',brown,dry,stiff <br /> 50 8:25 90 4 6 ML SILT 45,4'-46.5',brown with white caliche,dry,stiff-_ <br /> - -- -- <br /> 4 7 <br /> 40 -- --- — ------------------------- <br /> _ 50 8.30 80 4 8 ML SILT,brown with white caliche,dry,-stiff - <br /> 4 9 <br /> 18 100 5 o ML CLAYEY SILT with sand,brown,5-7%veryfine-grained sand,damp,stiff - - <br /> ---__ 5 1 <br /> ---- - -------- <br /> 12 --------------- ------------------------------------------------------- <br /> ------------------------- <br /> _ ML SANDY SILT 51'-51.4',brown, 15-35%fine grained sand,wet <br /> ------------------------ <br /> 22 100- 5 2 SILT 51.4'-52.5',brown,3-15%fine grained sand moist,stiff <br /> -------- -- --------------------------------------------- <br /> 5 3 <br /> _ ML SANDY SII-T with CLAY 53'-53.5', 15°10 fine grained sand,low percentage <br /> ____ 8.50 -100 5 4 of clay_wet - - <br /> -- - ----- - — --5 ---ry- ----------------------------------------------- <br /> _ <br /> SILT 53.5'54.5',2-5%very fine grained sand,moist,stiff <br /> 5 5 <br /> 39 ------------------- <br /> _ L SILT 55'-55.5',brown, 10-15%very fine grained sand,wet,stiff <br /> _____50 8:55 100 5 6 SANDY SILT 555-56.5',brown, 15-35%fine gained sand,wet <br /> ---------------------------------- ------- 5 7 ------------------------------------------------------ <br /> _ SANDY SILT,as above,until 57.7' <br /> ----------------------- --9:00-- 90 5 8 ML SILT,-light brown with orange iron oxide stains_3.10%o very fine grained- - - <br /> ----------- <br /> - - --- - <br /> _ sand,moist <br /> -- -------------------------- - ----I-------- 5 9 <br /> — <br /> Comments: No samples collected 0'45'bgs.#2112 sand used for filter pack. <br /> Sampled to 58.5',drilled to 58'and completed well. <br />